Paper-support for writing-machines.



I 0. THIEME'. PAPER 'SUPPORT'FOR WRITING MACHINES.

APPLICATION FILED DEC- 3. 1913- v Patented Nov. 28, 1916.-

improved paper support.

of Fig. 1. Fig. 3 is a.

40 ing of the entry or'ro TH-iEIVfE, Louis, MISS MACHINE com?Anti, on s1. LOU:

10 make and usethe'sa-me,reference being had to the accompanying drawings, forming part of this specification, in which-' Figure 1 is a frontview of one form of typewriter paper carriage equipped with my Fig. '2 is a vertical section on line 2-2 bottom view of'the mounting for one of the holding elements. My invention relates broadly to writing machines, and specifically to a form of paper for holding paper in holding mechanism proper position on the printing line while the pressure rolls are cast off.

The principal object of my invention is to provide a simple and efficient form of mech anism for holding a sheet or sheets adapted to receive a plurality of entries. in proper position on the printing line of a writing machine, while another sheou-which is adapted to receive a fewer number of entries is being inserted in the machine or withdrawn therefrom.

In various forms to make a ledger or of billing, it is desirable book entry at the same time that an invoice or statement is prepared. Obviously the ledger or book sheet is adapted to receive a numberof entries, for which. entries it may be desired to make separate invoices or statements. The makon-the book or ledger sheet is accomplished simultaneously with the making of the invoice or transfer' paper, and an essential manipulation' insuch billing is' the properposi tioning of the invoice sheetupon the ledger sheet, and both sheets relative to. the printing" line of the machine. p 151's the universal practice in writing machines that the paper is By the use of the device herein described m assent, to new s MI I.- ,AQQRRQRATEQI? Application are December '3, 1913.1 Serial; no. 504:;334.

and illustrated, it -sheet in proper p by the use of carbon held uponfthe platen 26 and a link which 50 by pressure rollswhich maintain itin proper al-inement and ii'isure' its proper spaclng l brackets 11 81 n in'g line while the pressure-re, off and while anotherg'sheet which for convenience will be called auinvoicesheet, may be removed and replaced with another.

These and otherobjects .of my invention will be obvious upon an understanding of the device illustrated,.whereinpas shown. in Fig. '1, 1 represents th!3 end frames ofthe paper carriage, th front-bar connecting said end frames, a-nd'l a platen shaft-journaled in said end frames,v The platen 5 is carried upon the platen shafts andmay be rotated by manipulation of thelhumb wheel. 6. As shown in Fig. 2,.a shaft 7 is carried in links 8, one of said links being pivoted on each of end frames Ll Said shaft] carries the pressure rolls?) and leaf spri gs 10 tend to force shaft 7 towardtheplaten and hold, the pressure rollsfl {in engagement there with. ,One of'the linksf= 8jisforined iwith a.

lever arm 11. whichl nay be sw ung'd'ownw ard by pressure on a key 12 so asto swing. shaft 7 rearwardlv to remove pressure rolls 9 from; platen 5. A locking ,device 'sprovided in" the form of a l1I1l( -ll haying a notched portion'l5 adapted toen'gageonthepin 16 seated on one. of the end franres. The

notched portion 15 1S impelled into engage.

i v g11ide'l9 fwhicl1 enibra ces the platen and a rotatablesleeve 20 which carries a holding. element 21; The sleeves 20 slide upona rotatable shaft 22 which passes through a portion of the brack-' ets 18. lhe rotataf'le shaft 22 1s provided which. engage i h a lo s n i'ml as, 2 i i pins 25 carried onftlie slee es and slot engageme' 22. q k l f i sha t is rotated.

'22 is. accomplishedjby m I "T l1ispin e es a Sh ft s me s said lever 12. Depression. of" key 'owhwardlyf and rotates shown in Fig." 2. Set means for. "securing proper position "011* front arm with thej key 12 moves link 2?; shaft 22 clockwise,

screws 7 28 provide "of ga lver 'arm:

The disposal of holding elements 21 is such that they will engage paper supported on the platen 5 when the shaft 22 is rotated in the manner just described, and hold said paper in position relative to the printing line while the pressure rolls 9 are thrown ofl.

The preferred form of retaining 1nemher, as illustratedin Fig. 2, is provided with a short needle point 29 which may engage several sheets of paper, so that in case several ledger or book sheets are to be written upon simultaneously, all will be held in proper position. This preferred form may have a stop member 30 in the form of 'a small disk which engages the paper to prevent the needle point penetrating too far. To accommodate the needle point, I score a slight annular groove represented at 31 in Fig. 2, around the platen in the line traversed b the needle point 29.

'When a holding element is in position to engage the paper, its needle point will lie in this groove, and will not penetrate the platen. As a consequence, either one or a plurality of sheets may be held in proper position without the platen being engaged by the points, the sheets so impaled upon the points being held both in proper position relative to the printing line, and in proper position relative to one another so that proper alinement of the printing will be maintained on all of the sheets. i

It is obvious that the holding elements 21 may operate at one side of guide fingers 19, or the guide fingers may be provided with apertures 1 through which the holding elements may operate to engage the edges of the ledger sheet 32. As the ledger sheet 32 is universally wider than the invoice sheets 34, there will be a space at the sides of such invoice sheets for the operation of the holding elements 21. Suitable paper guides 35 are provided to support the invoice sheets 34;.

In the operation of my improved device in billing, the ledger sheet 32 is inserted in the machine with an invoice sheet 34 thereover, a transfer sheet being interposed between the two. The item is then entered simultaneously on the invoice and ledger sheets. hen all items which are to appear on the invoide sheet have been entered, key 12 is depressed, thereby throwing holding elements 21 into engagement with ledger sheet 32 and disengaging pressure rolls 9 from the paper. It is evidentthcn that ledger sheet 32 will be securely held in position relative to the printing line, and that invoice sheet 3-1 being released by pressure rolls 9, may be removed and replaced by another invoice sheet.

It will be understood that upon the dent-ssion of key 12, link 14 will engage pin 16 to lock said key in depressed position,

thereby holding pressure rolls 9 out of engagement with the paper, and holding elements 21 in engagement with the paper. The locking device may be thrown off by pressure on the key 35 which disengages notch 15 from pin 16, permitting pressure rolls 9 to spring back into engagement with the paper under the influence of springs 10, which springs also, by the elevation of lever arm 11, reversely rotate shaft 22 and disengage holding elements 21 from the paper. In this fashion, a plurality of invoices and ledger entries may be made simultaneously without removing the ledger sheet from the machine. I

From the foregoing, it is obvious that my improved paper holding device is operated upon the manipulation of the mechanism for throwing off the pressure rolls, and it is further obvious that my improved holding device engages paper on the platen when the pressure rolls are thrown otf, and does so without the necessity of, any added manipulation of the paper. It is likewise obvious that this device does not require spe-' cially formed paper, such as paper with perforations therein, and that it will engage the paper, no matter how far the paper has been adva iced upon the platen.

t is in ther obvious that this device permits the removal and insertion of sheets between the platen and the sheets which are heldin writing position, and furthermore, that inasmuch asthe held sheets are main tained in position by impalement on the needle points, a proper relative position of said sheets will be maintained.

I am aware that modifications in the embodiment of my invention may be made, and I am also aware that other portions of the (evice may be altered in obvious fashion without departing from the spirit or essence of the invention. Consequently, I do not intend that my invention be limited to the specific form illustrated.

What I claim as my invention is:

1. A paper holding mechanism for writing machines including the combination of a revoluble platen, holding elements movable toward and from the platen, operating mechanism for moving said holding elements. and impaling members carried by said holding elements and adapted to penetrate paper supported on the platen to relain the paper in fixed position relative to the printing line. the platen being formed to accomn'iodate the said impaling elements. 2. A paper support for writing machines including the combination of a platen arranged for line spacing movement, holding III elements movable relative to the platen,

e i to engage one or more sheets supported on the platen to hold the same in fixed posit-ion reintive to the printingline.

3. In e device ofthe class deserihed, the eomhmatlon of a paper carriage, a platen, holding means for cooperating with the plat-en in line spacing movement, means for rendering said. holding means inoperative,

holding elements on the carriage and movable to transfix paper on the platen to retain it H1 posit-1011 when the holding means is east exi', ami means for moving said hold ing elements to engage and disengage paper support-ed on the platen.

4. In a device of the class described in combination with a movable platen for supporting paper, an impaling 'holding'element movable tofmnsfix paper on the platen to retain. it in fixed position, the platen beingv fox-ined to accommodate the impniingi elefiopies 0f ihis patent may be abcaine for gag ment, and-manipuleiim means for operating said holding element to engage and disen- In testimony whereof I hereunte efix my signature in the presence of two Witnesses, this 29th day of Nov, 1913. I

v OTTO THXEMEG Witnesses M. P. SMun,

M, A. Hnnnnn five cents each; by addressing the fiemmissiener sf ffeients,

Washington, 1156: 

